> ## Documentation Index
> Fetch the complete documentation index at: https://sims-bae272dd.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Suppliers

> Who you buy from, and teaching PRODUCT_NAME their item numbers.

A supplier record holds the vendor's contact details, payment terms (for
example "Net 30") and tax ID. Every purchase invoice belongs to a supplier.

## Add a supplier

**Catalog → Suppliers → New Supplier.** Name and contact details are enough to
start; payment terms help you see what is due when.

## Linking a supplier's item numbers to your products

This is the part that pays off. Distributors use their own item numbers, which
rarely match your SKUs. Each time you tell PRODUCT\_NAME "this vendor's number is
that product of mine", it remembers.

**1. Open the supplier**

Catalog → Suppliers, then the supplier.

**2. Link a product**

Use **Link Product** and pair the supplier's item number with your product.

You can also do this while reviewing a scanned invoice — mapping an unmatched
line to one of your products saves the link at the same time.

> [!NOTE]
>
> The more of these links exist, the less review a scanned invoice needs. After
> a few invoices from the same distributor, most lines match themselves.

## Returns and credit memos

Goods going back to a supplier are recorded as a **return** rather than a
negative purchase. See [Purchase invoices](https://sims-bae272dd.mintlify.site/purchasing/invoices.md#returns-and-credit-memos).


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